Diseases reference index «Yawning - excessive»

Yawning involves opening the mouth involuntarily while taking a long, deep breath of air. This is usually done as a result of drowsiness or weariness. Excessive yawning is yawning that happens more often than would be expected, even if drowsiness or weariness is present.

Considerations

Yawning is a normal response to fatigue and drowsiness, but excessive yawning can be caused by a vasovagal reaction. This reaction is caused by the action of a nerve, called the vagus nerve, on the blood vessels. It may indicate a heart problem.

Normal yawning may happen when someone else yawns.

Causes

Drowsiness or weariness

Disorders associated with excessive daytime sleepiness

Vasovagal reaction

Heart attack

Aortic dissection

Home Care

Follow the treatment for the underlying cause.

When to Contact a Medical Professional

You experience unexplained and excessive yawning.

The yawning is associated with excessive daytime sleepiness.

What to Expect at Your Office Visit

The health care provider will get your medical history and do a physical examination.